Figure 57. Puhler sounder, described by Christian Puhler in 1563, repeated an idea first put forth by Cardinal Nicholas Pusanus a century earlier. The principle, was to attach a float to a weight making it heavier than water. Upon striking bottom, the float would detach. Depth would be derived from round- trip travel time. It is unknown if this device was ever field tested.
Photo Category: Oceanography - Historical instruments
429 x 640 | 25.43 KB | |
858 x 1280 | 99.09 KB | |
1474 x 2199 | 246.84 KB |
Added On | 18th October 2015 |
Viewed | 8 viewed |
Downloads | 1 Downloaded |